I don't have a SP but I have Dumble type and it strikes me how unique my EQ settings are for each of my guitars. I'd have the mid knob cranked or shut off between two strats with the same pickups. I guess these things are so darn responsive, every little adjustment can make or break a playing situation sometimes its frustrating on different venues. I have the drive trim, the input gain, the EQ and master to think about how it relaties to the drive channel and how it all affects my headroom at stage volumes. But as Aronteo mentioned, for bedroom playing, it is much simpler.